Desk stand



E.V A. BoH'LMAN. DESK STAND. APPLICATION FILED MAY`27, 1918.

1,431,925, l Patented Oct. 17,1922.

a spring eifectl whereby the outwardly ex tending portion 23 is pressed into the oriiice 24 by said U shaped portion 20. The portion 20 of the bracket Orsaddle piece 17 is also provided with a tapped orifice 25 for receiving the screw 12 which passes through openings in the cylindrical flange of the head piece 10 and of t-he tube-4. The outer peripheral surface of the portion 2O is rounded to fit the inner peripheral surface of the tube 4. The withdrawal of the screw 12 will not cause the displacementof the saddle piece 17, since `the spring effect of the member 17 is suficient to hold the shoulder portion 22 and portion Q3 in engagement with the mounting member. Thus it will be seen that the screw 12 is permitted to be withdrawn to permit the removal of the transmitter without affecting the saddle piece 17 and that the saddle member 17 does not solely depend upon the screw 12 in being retained in its mounted position.

From the foregoing, it is at once apparent that the screw 12 is used not only for holding the saddle piece 17 in position but also for holding the head 10 in position. A pair of springs 26 is insulatingly secured to a strip 27 which in turn is secured to the arm 19 of the saddle piece 17 by means of a pair of screws 28. The springs 26 provide means for rendering inoperative the transmitter' of the subscril ers set. A circular orifice 29 is cut in the front side ofthe cylindrical flange of the head piece 10, and a similarly situated orifice 30 is cut in the tube 4. A button of insulating` material 31, provided 1 with a flange 3Q, extends through these oriport the switch hook.

iices and is used for moving one ofthe contact springs 26 into engagement with the other contact spring 26. The one spring Q6 maintains the button 3l in'its normal position.

A circular opening is provided in each of the arms 18and 19 and through these openings a rivet 33 is extended to pivotally sup- The switch hook which is pivoted upon this bolt or rivet 33 is provided with outwardly extending arms 34 which are formed into a hook upon which the receiver is adapted to be hung when the instrument is not in use. The switch hook also includes an arm 35 which extends downwardly through the standard or tube 4. The arm 35 is rigidly connected to the arm 38 of the switch hook 14 by means of a pair of rivets 36. On account of ease in manufacture, the switch hook 14 is formed of two punched pieces riveted together by means of rivets 37. The downwardly eX- tending arm 38 of the switch hook 14 is practically at right angles to the arm 16 of the switch hook 14 which extends through the slots 13 and 15. The rivet 33 passes through an orifice 39 cut in the switch hook 14 to pivotally support the same. The two punchings which form the switch hook 14 are separated at the lower extremity of the arm 38 of the switch hook to receive the two strips or punchings that form the arm 35 which extends downwardly through the standard or tube, as previously described.

A stop piece 40 is provided in the form of hard felt or some other suitable material and securely held between the two strips that form the arm 35, and is used to limit the movement of the switch hook. The third part of the switch hook comprises the bar 41, also preferably formed from two pieces of punched sheet metal riveted together by means of rivets 42` the upper end of which is pivoted to the lower end of the arm 35 by means of a' rivet or bolt 43 and the lower end of which carries a roller 44 formed of insulating material, which roller is suitably formed to receive the curved end of the lower switch hook spring 8. The switch hook springs in any desired number supported in the hollow of the base'Q and as shown are insulatingly connected to the circular mounting' piece 7 by means of screws 45. lVhen the receiver is placed upon the switch hook, the arm 38 thereof is turned to the right about the pivot 33 which auses the toggle mechanism to straighten out, thereby separating the contact springs 8 and changing the circuits controlled thereby from talking condition to normal condition.

When it is desired to operate the contact spring 26 to render the transmitter'inoperative, it is only necessaryl for the subscriber to press inwardly on button 31, thereby moving the one Contact spring 26 into engagement with the other contact spring 26. It will be noted that I have placed the button -31 in a position where it can be readily operated by the thumb of the subscriber as he holds a desk stand in his hand. I have not shown the circuits or the wiring of the deskstand to which my improvements are applied as they form no part of the invention and may conform to the particular instrument and circuits with which the invention may be employed.

From the foregoing, it is thus apparent that I have provided a switch mechanism which overcomes undesirable features and which is positive and eiiicient in operation, and is comparatively simple and cheap to manufacture. It is also evident that various details may depart from thosespeciiically described. Hence, I do not desire to be limited in all respects to the exact structure shown, but aim to cover all modifications that come within the spirit of the appended claims.

It is also apparent from the foregoing that the bracket 17 which can be manufactured cheaply by being punched and formed ian :from sheet metal is not only used to support the switch hook and to receive vthe screw which holds the head l0 in position on the tube a, but also supports the springs 26.

Having thus described my intention in One `practical form, what 1 claim and desire to secure by Letters Patent is:

1. A telephone desk stand including a cylindrical tube having an orifice, a transmitter support, means for securing said transmitter suppor to said'cylindrical tube, a switch hook lever, and a member for pivotally supporting said switch hook lever extending into the orifice in said cylindrical tube and adapted to receive the means for securing the transmitter support to the said cylindrical tube.

2. A telephone desk stand including a standard provided with an orifice, a transmitter support attached to said standard, a switch hook lever, a member pivotally supporting said switch hook lever, said member extending into the orifice in said standard, and means for securing the 'transmitter support to the standard and :For securing the switchhook supporting member to the said standard.

3. A telephone desk stand provided with a cylindrical tube having an orifice, a transmitter support for attachment to said tube, a switch hook lever supporting` member for pivotally supporting the said switch hook extending into the orifice in said cylindrical tube, means for securing the switch hook supporting member and the transmitter support to said cylindrical tube, and contact spring attached to said switch hook supporting member adapted to be operated by the subscriber.

4. A telephone device of the character described, including a cylindrical tube having an orifice, a switch hook supporting member extending into said orifice, and means :tor securing said switch hook supporting' member to said tube.

5. A telephone device of the character described, including` a cylindrical tube having an orifice, a transmitter support, a switch hook supporting member mounted within said tube and having a part thereof projecting into said orifice, means for securing said transmitter support to said tube, said means also securing the said switch hook supporting member to the said cylindrical tube, and a contact spring supported by said switch hook supporting member.

6. A telephone desk stand including a standard or tube, a switch hook supporting member provided wit-h an extension, an angular switch hook supported by said supporting member, and a pair of contact springs supported by the extension of said switch hook supporting member.

7. A telephonek desk stand including a standard or tube, a switch hook supporting member provided with an extension, an angular switch hook supported by said supporting member, a contact spring secured to the extension of said supporting member, and a contact button protruding through an orifice in said standard for actuating said contact spring.

8. A telephone instrument including' a mounting support having an orifice, a switch hook supporting .member having a portion thereof extending into said orifice, means for securing the said switch hook supporting member to the said mounting member, a depending member formed integrally with said switch hook supporting member, and a contactspring supported by said depending member.

9. A telephone instrument including a standard, a switch hook supporting member adapted to be secured within said standard, a raised element formed on said member and an orifice cut in said member, a pair of oriiices cut in said standard,.one of said latter orifices adapted to receive said raised element, and means passing through the other oi? said latter orifices and the orifice cut in said switch hook supporting inember for retaining said switch hook supporting member in position.

l0. A telephone instrument of the character described including a supporting standard, a transmitter support provided with a cylindrical 'tia-nge adapted to fit over said supporting standard, a switch hook supporting member adapted to be mounted within said standard, means` tor securing said transmitter support and said switch hook support to said standard, and a contact spring supported by said switch hook support.

11. A telephone instrument of the character described including a supporting standard, a transmitter support provided with a cylindrical Harige adapted to fit over said supporting standard, a switch hook supporting member adapted to be mounted `within said standard, means for securing said transmitter support and said switch hook support to said standard, a Contact spring, and a button ttor operating said contact spring protruding through an orifice in said transmitter support.

l2. A telephone instrument of the character described including a supporting standard, a switch hook provided with an arm extending through a slot in said standard, a switch hook supporting member provided with a shoulder adapted to fit into said slot, and a member passing through an orifice in said standard into an orifice in said switch hook supporting member.

13. .A telephone. instrument o'f the character described including a standard, a transmitter support provided with a cylindrical flange adapted to fit over said standard, a slot cut in said standard, a slot cut in the cylindrical flange of said transmitter support, a switch hook supporting member provided with shoulders adapt-ed to fit into said slots, and a screw adapted to extend through an orifice in said standard into an orifice in said switch hook supporting member.

14. A telephone instrument ot' the character described including a standard, a transmit-ter support provided with a cylindrical flange adapted to tit over said standard, a slot cut in said standard, a slot cut in the cylindrical 'flange of said transmitter support, a switch hook supper-tung` member provided with shoulders adapted to tit into said slots, and a screw adapted to `extend through an orifice :in said transmitter support into an orifice in said switch hook` supporting member.

15. A telephone instrument including a mounting' support provided with a slot, a switch hook supportiinel member having an ear adapted to fit into said slot and a shoulder portion abutting against said mountingl support, and means tor fastening the said switch hook supporting' member to said mounting support thereby holdinirgthe switch hook supporting member in position.

16. A telephone instrument including' a mounting' support having an orifice, a switch hook supporting bracket havinga lug: extending into saidl orifice, and a portion projecting in juxtaposition to said mounting; support, and means extending through theI mounting support into the portion of said.

switch hook supporting` member adjacent said mounting support 'for holding said switch hook supporting member in position.

17. A telephone instrument including a mountingsupport having orifices, a switch hook supporting bracket havingv alug extending' into one of said orifices and a projecting portion extending adjacent said mounting` support, and means extending through the mounting,` support into the portion of said switch hook supporting` member mounting support provided with orifices,

switch hook supporting member having means extendinginto said orifices. and

means for 'fastening said switch hook supporting member to said mounting` support.

19. A telephone instrument oit the character described, including a mounting support,a switch hook lieveigaswitch hook sup.- porting member solely attached to said mounting support, a screw member, and ine-ans integrally formed on 'said switch hook supporting member, said screw vmember and said lastmeans securing` said switchhook supportingmember in position in said mounting support.

20. Atelephone instrument of the character described including a., mounting sup port, a transmitter support flor attachment to said mounting support, a switch hook lever.. and switch hook lever supporting means attached to said mounting support by ,means integrally formed yon said switchhooi; lever supportino means,

Signed by me at hicago, in the county of Cook and State of Illinois, this 24th day 'of May, 1918.

ERNEST a. BOHLMAN. 

